The International journal of periodontics & restorative dentistry最新文献

{"title":"Effectiveness of Two Different Flap Advancement Techniques for Vertical Bone Augmentation in the Anterior Maxilla: A Comparative, Split-Mouth Cadaver Study.","authors":"Istvan A Urban, Leonardo Mancini, Samuel Akhondi, Sandor Farkasdi, Hannes Traxler, Alexander Ecker, Tara Petri, Florian Wagner, Arvin Shahbazi, Lorenzo Tavelli","doi":"10.11607/prd.8039","DOIUrl":"https://doi.org/10.11607/prd.8039","url":null,"abstract":"<p><strong>Introduction: </strong>Achieving tension-free flap closure is a critical challenge in vertical ridge augmentation of the anterior maxilla, where anatomical constraints limit flap mobility and soft tissue advancement. This study compares the split-thickness flap (control) and sub-orbicularis full-thickness flap (test) in cadaveric models to evaluate their impact on soft tissue thickness, flap integrity following periosteal release, and mucogingival junction (MGJ) displacement. The goal is to characterize and optimize surgical approaches for vertical bone augmentation in the anterior maxilla.</p><p><strong>Materials and methods: </strong>Twelve edentulous human cadaveric maxillae were randomized to receive either split-thickness or sub-orbicularis full-thickness flap preparation in a split-mouth design. Standardized alveolar ridge conditions were established. Primary outcome was postoperative soft tissue thickness measured with high-frequency ultrasonography (HFUS); secondary outcomes were flap structural integrity assessed with HFUS and MGJ displacement evaluated using 3D optical scan superimposition).</p><p><strong>Results: </strong>Ultrasound revealed significant soft tissue thickness differences at 0 mm (0.45 mm, P = 0.009), 2 mm (-0.31 mm, P = 0.015), and 4 mm (-0.42 mm, P = 0.024) apical to the crest. Flap trauma was greater in the control group, with hypoechoic zones near deep vascular structures. The test group showed minimal soft tissue and vascular damage. MGJ displacement did not differ significantly between groups.</p><p><strong>Conclusion: </strong>Both groups achieved tension-free flap closure. However, the 0.45 mm reduction in soft tissue thickness associated with the split-thickness flap may compromise blood supply and elevate the risk of tissue compression. Additionally, inadvertent trauma to deeper vascular structures in this group could delay healing and increase the likelihood of postoperative complications.</p>","PeriodicalId":94231,"journal":{"name":"The International journal of periodontics & restorative dentistry","volume":"0 0","pages":"1-22"},"PeriodicalIF":1.1,"publicationDate":"2026-08-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148681892","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Redefining the Restorative Interface in Implant Dentistry: Intermediate Multi-Unit Abutments for Enhanced Peri-Implant Tissue Stability.","authors":"Iñaki Gamborena, Emilio Couso-Queiruga, Gustavo Avila-Ortiz","doi":"10.11607/prd.8237","DOIUrl":"https://doi.org/10.11607/prd.8237","url":null,"abstract":"<p><p>In tooth replacement therapy with implant-supported prostheses, optimal outcomes depend on a wide range of variables, including anatomic, phenotypic, surgical, and prosthetic factors. Adequate management of the restorative interface is particularly important for achieving predictable esthetic outcomes in the anterior maxilla and for maintaining long-term soft and hard tissue health and stability. This article describes an approach based on the use of intermediate multi-unit abutments on bone-level implants. A comprehensive workflow is presented, integrating digital planning, surgical protocols, and prosthetic strategies for both immediate and delayed implant placement. In immediate implant placement, these intermediate abutments may be used as adjuncts to ridge preservation and reconstructive procedures by facilitating provisional restoration and supporting peri-implant tissue stability. In delayed implant placement, they may promote bone preservation between adjacent implants, potentially reducing the remodeling associated with repeated retrieval and insertion of prosthetic components directly onto the implant platform. This therapeutic strategy may help maintain stable marginal bone levels, support long-term peri-implant tissue health, esthetics, and, in specific situations, compensate for suboptimal implant position.</p>","PeriodicalId":94231,"journal":{"name":"The International journal of periodontics & restorative dentistry","volume":"0 0","pages":"1-29"},"PeriodicalIF":1.1,"publicationDate":"2026-08-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148681831","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Integrating Cementum to the Dental Implant Abutment to Facilitate Connective Tissue Insertion: Histologic and FE-SEM Observations.","authors":"Ignacio Sanz-Martin, Inpyo Hong, Jin-Young Park, Lorenzo Tavelli, Alberto Monje, Ignacio Sanz-Sanchez, Jae-Kook Cha","doi":"10.11607/prd.7552","DOIUrl":"10.11607/prd.7552","url":null,"abstract":"<p><p>The peri-implant mucosal barrier 'seal' plays a significant role in maintaining peri-implant health, but its efficacy in the presence of inflammation is lower than that of natural teeth, primarily due to the absence of collagen fiber insertion into the implant/abutment surface. To test the influence of cementum on collagen fiber insertion/orientation after tooth removal, a customized rootcementum abutment was fabricated using a fragment from a natural tooth root. An extracted root fragment, preserving both the cementum and periodontal ligament, was cemented to the titanium abutment and used as a healing abutment for an immediate implant placed into the fresh extraction socket. Three months after implant placement, firm resistance to probing was noted clinically, and histologic and FE-SEM analyses confirmed perpendicular collagen fibers embedded into the rootcementum abutment surface. This proof-of-concept unveils the role of cementum in fiber insertion/ orientation and sheds light on the relevance of enhancing the seal of the peri-implant mucosal barrier to protect the underlying bone by utilizing a customized abutment that allows for the insertion of connective tissue fibers.</p>","PeriodicalId":94231,"journal":{"name":"The International journal of periodontics & restorative dentistry","volume":"0 0","pages":"432-442"},"PeriodicalIF":1.1,"publicationDate":"2026-07-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143813229","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Reclaiming Dentistry: A Blueprint for Practitioner Empowerment in the Corporate Age.","authors":"Edgard El Chaar","doi":"10.11607/prd.2026.4.c","DOIUrl":"https://doi.org/10.11607/prd.2026.4.c","url":null,"abstract":"","PeriodicalId":94231,"journal":{"name":"The International journal of periodontics & restorative dentistry","volume":"46 4","pages":"415-419"},"PeriodicalIF":1.1,"publicationDate":"2026-07-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148537966","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Non-immediacy for Nondestructive Equilibrium: Surgical, Osteogenic, and Prosthetic Innovations in Full-Arch Implant Rehabilitations with Terminal Dentition-A 3-Year Case Report.","authors":"Young K Kim","doi":"10.11607/prd.7518","DOIUrl":"10.11607/prd.7518","url":null,"abstract":"<p><p>Full-arch implant rehabilitation-necessitating a holistic, transdisciplinary approach-has been one of the most rapidly advancing disciplines in implant dentistry, driven by rising standards and modern technologic advancements. Despite indicated cases and genuine efforts to improve efficiency, the current trend of an immediacy (or 'teeth-in-a-day') protocol may have unintentionally veiled a more conservative, predictable, and practical potential in wound healing process, esthetics, and occlusion. Through an approach that is more phased and utilizes terminal dentitions as strategic abutments, this case report with 3 years of follow-up emphasizes the leverage of natural biologic phenomena in tissue maturation, remodeling, and condensation, along with prosthetic sophistications focusing on its meticulousness in execution and long-range trajectory success. This workflow actualizes a high-quality level of craftsmanship with surgical and prosthetic innovations, introduced as a 'retightening bilateral sling periosteal mattress suture' concept for intermittent tensocompressive mechanotransduction-induced guided bone regeneration and 'LegOvate' protocol for seamless loading of prosthetic conversions, emphasizing the intricate reciprocity between physiology and biomechanics for a primary goal of a nondestructive equilibrium.</p>","PeriodicalId":94231,"journal":{"name":"The International journal of periodontics & restorative dentistry","volume":"0 0","pages":"502-517"},"PeriodicalIF":1.1,"publicationDate":"2026-07-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143560507","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Clinical Outcomes of Periodontal Regenerative Therapy Utilizing the Double-Sided Entire Papilla Preservation (DEPP) Technique for Infrabony Defects: A 12-Month Follow-up Case Series.","authors":"Yudai Ogawa, Serhat Aslan, Hiroaki Goto, Dai Kawanabe, Takahiko Nagai, Shogo Maekawa, Tomohiro Ishikawa, Atsushi Saito, Pierpaolo Cortellini, Kentaro Imamura","doi":"10.11607/prd.7532","DOIUrl":"10.11607/prd.7532","url":null,"abstract":"<p><p>The Double-sided Entire Papilla Preservation (DEPP) technique was designed to allow access into a bone defect without compromising the integrity of the papilla when the defect extends to the palatal/ lingual side. This case series aimed to evaluate the clinical and radiographic outcomes of periodontal regenerative therapy using the DEPP technique for infrabony defects. DEPP was performed with vertical incisions on both the buccal and palatal sides to access the bone defect. After debridement, recombinant human fibroblast growth factor-2 or enamel matrix derivative was used in combination with carbonate apatite or deproteinized bovine bone mineral to treat the defect. Periodontal parameters were evaluated at baseline and at 6 and 12 months postoperatively. Clinical attachment level (CAL) and probing depth (PD) values were significantly improved compared to baseline at 6 months (P < .05) and 12 months (P < .01). At 12 months, the mean PD reduction was 5.0 ± 1.4 mm and CAL gain was 5.3 ± 1.8 mm. According to the composite outcome measure, the outcomes of the treated sites were considered successful. This case series demonstrates that DEPP can be effectively combined with regenerative therapy for the treatment of infrabony defects that extend to the palatal/lingual side, yielding favorable clinical outcomes with minimal surgical complications.</p>","PeriodicalId":94231,"journal":{"name":"The International journal of periodontics & restorative dentistry","volume":"0 0","pages":"460-471"},"PeriodicalIF":1.1,"publicationDate":"2026-07-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143560505","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Modified Coronally Advanced Flap in Bone Augmentation Procedure: Case Series and Technical Notes.","authors":"Luca De Stavola, Giovanni Zucchelli","doi":"10.11607/prd.7600","DOIUrl":"10.11607/prd.7600","url":null,"abstract":"<p><p>Soft tissue management in bone augmentation is critical to ensuring the predictability of new bone formation. The flap elongation, by way of a periosteum releasing incision, determines an anatomical alteration of the existing soft tissue architecture. In particular, both the vestibule position and the mucogingival line are moved coronally. The correction of the vestibule position is usually performed by a partial flap preparation very close to the periosteum layer, reducing the overall supracrestal tissue volume. The presented technique defines a strategy to obtain flap elongation, potentially without the loss of the vestibule position. Clear anatomical reference points are introduced and described to render the technique predictable and repeatable.</p>","PeriodicalId":94231,"journal":{"name":"The International journal of periodontics & restorative dentistry","volume":"0 0","pages":"420-432"},"PeriodicalIF":1.1,"publicationDate":"2026-07-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143813230","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Treatment of External Cervical Resorption via Surgical Crown Lengthening and Concomitant Placement of a Resin-Modified Glass-Ionomer Restoration: A Case Series with 1- to 4-Year Follow-up.","authors":"Adam S Goldberg, David A Goldberg, Paul S Rosen","doi":"10.11607/prd.7452","DOIUrl":"10.11607/prd.7452","url":null,"abstract":"<p><p>External cervical resorption is a disease entity with an idiopathic etiology by which osteoclastic invasion cavitates teeth near the cementoenamel junction. The lesion, if left untreated, has the potential to progress and compromise tooth maintainability. Treatment of these lesions requires access (often surgical), removal of the affected tissue, and placement of a restorative material. This case series documents 10 external cervical resorption lesions that were treated by surgical crown lengthening with concurrent placement of a resin-modified glass-ionomer restoration and followed up for a period ranging from July 2020 to July 2024. This case series offers evidence that external cervical resorption can be treated with a high expectancy of tooth survival. Longer-term follow-ups are needed to see if this treatment remains stable and predictable.</p>","PeriodicalId":94231,"journal":{"name":"The International journal of periodontics & restorative dentistry","volume":"0 0","pages":"518-526"},"PeriodicalIF":1.1,"publicationDate":"2026-07-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143576086","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"3D-Printed Mucoguide Surgical Template to Increase Predictability in Mucogingival Surgery: Technical Note and Case Report.","authors":"Federico Rivara, Luca Toselli","doi":"10.11607/prd.7453","DOIUrl":"10.11607/prd.7453","url":null,"abstract":"<p><p>Mucogingival surgery is a reliable technique to treat both functional and esthetic issues on teeth. In particular, the treatment success of gingival recessions depends on the flap design, as an inaccurate flap design could lead to surgical failure. For this reason, a new software-guided tool to design and perform mucogingival incisions was proposed. After selecting a flap design in accordance with the mucogingival technique, a template is designed that allows the clinician to guide the mucogingival flap in terms of incision line positions and blade inclination. The guide also incorporated the palatal box to collect a connective tissue graft. The printed guide is stabilized via tooth support, and the 45-degree inclination of the edges allows a beveled incision that follows the flap design. Afterward, the guide is removed, and the surgery is completed with papillae deepithelialization, connective tissue grafting, and flap closure. At 12 months, both sites achieved successful coverage according to the planning. This new digital tool to transfer flap design from the screen to the surgical field reduces the surgical time and number/frequency of mistakes that could lead to a negative outcome.</p>","PeriodicalId":94231,"journal":{"name":"The International journal of periodontics & restorative dentistry","volume":"0 0","pages":"472-481"},"PeriodicalIF":1.1,"publicationDate":"2026-07-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143576082","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Timing of Implant Placement in the Esthetic Area: Diagnostic Algorithm for Clinical Decision-Making.","authors":"Matteo Antonio Deflorian, Fabio Galli, Riccardo Scaini, Enrico Maria Strappa, Tiziano Testori","doi":"10.11607/prd.7541","DOIUrl":"10.11607/prd.7541","url":null,"abstract":"<p><p>Immediate implant placement in the esthetic area is a challenging surgical procedure. In the anterior maxilla, the esthetic outcome and the tissue stability over time are highly emphasized. A thorough preoperative analysis of the local site anatomy is essential to choosing the most suitable surgical and prosthetic protocol. Due to the heterogenous data from the literature, a diagnostic algorithm was developed to assist the clinician in the decision-making process for single-tooth implant rehabilitation in the anterior maxilla. The treatment options were based on the predictability of implant primary stability, integrity of the buccal bone wall, gingival phenotype, and absence or presence of gingival recessions. Within its limitations, this approach may reduce the incidence of complications and failures.</p>","PeriodicalId":94231,"journal":{"name":"The International journal of periodontics & restorative dentistry","volume":"0 0","pages":"443-459"},"PeriodicalIF":1.1,"publicationDate":"2026-07-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143576085","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}